20813996

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{25633}}^1$

素因数の和:25673

約数の個数: 24

約数和(自身を含む): 43065120

約数和(自身を除く): 22251124

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 116, 203, 406, 812, 25633, 51266, 102532, 179431, 358862, 717724, 743357, 1486714, 2973428, 5203499, 10406998, 20813996]

約数ペア:

[(1, 20813996), (2, 10406998), (4, 5203499), (7, 2973428), (14, 1486714), (28, 743357), (29, 717724), (58, 358862), (116, 179431), (203, 102532), (406, 51266), (812, 25633)]